Trilobite IDs Please!

[Micah]

The first two I have no idea about where they come from but the third I found in gravel from a creek bed in southeast Nebraska (probably glacial till) and I believe is a pygidum topotype, but could be wrong, the last I found in a shale gravel pit near Mohawk NY in Herkamer county (I'm not familiar with the area's geology maybe someone from that area can help?) Thanks in advance!

[piranha]

29 minutes ago, Micah said:

...the third I found in gravel from a creek bed in southeast Nebraska (probably glacial till) and I believe is a pygidum topotype, but could be wrong...

 

 

This is a very confusing statement.  If you believe it is a topotype, by definition you would also have to know the type specimen it is based on.  

 

Here are the IDs:

[Micah]

I have no idea why it says topotype lol  I don't think I could name a single species off the top of my head! I know virtually nothing of trilobites outside what parts make up the whole. I understand your confusion... Thank you for IDing them for me!

[piranha]

10 minutes ago, Micah said:

I have no idea why it says topotype lol...

 

 

It's a typotype lol... 

 

 

[Micah]

18 minutes ago, piranha said:

 

 

It's a typotype lol... 

 

 

Haha best pun I've heard in awhile! 

[FossilDAWG]

Just to clarify for readers who don't get what the question is, a "topotype" is a specimen of a particular species thst was collected from the same locality as the holotype (the particular specimen on which a species is founded).  So you cannot say something is a topotype and at the same time say you don't know what the species is. In this case, then, "topotype" was a topotypo.

 

Don

[Fossildude19]

I can just remove that, with a bit of Typotape.  

 

[doushantuo]

[fifbrindacier]